Split-sleeve connector.



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PATENTED FEB. 6, 1906. J. J. DOSSERT. SPLIT SLEEVE CONNECTOR. APPLIOATION FILED PBB.9,1905.

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JOHN J. DOSSER'i, OF NEW YORK, N. Y., ASSIGNOR TO DOSSERT &

COMPANY, A CORPORATlON OF NEW' YORK.

SPLITWSLEEVIE CONNECTOR..

litio. 81 1,908.

Specification of Letters Patent.

Patented Feb. 6, 1906.

Application tiled February 9.1905. Serial No. 244,847.

T0 (LZZ whom, it may crm/cern:

Bc it known that I, JOHN J. DpssER'r, a citizen of the United States, and a resident of New York, count of New York, State of New York, have invented certain new and useful Improvements in Split-Sleeve Connectors, of which the following is a specification.

The subject of the present invention is a connection or coupler for cables or solid wires, the same being adapted to join and form goed electrical and mechanical connection for conductors ordinarily in use. Differentl sizes of conductors maybe readily connected by means of the coupling herein dcscribed. Moreover, the ,coupling may unite a conductor of either type to an end or terminalconnection without being necessarily confined to the joining of the ends of two continuous conducting wires or cables.

The principle upon which the present invention is based is that of using coupling members having interior tapering-surfaces in combination with split coneshaped sleeves adapted to be compressed inside t ie coupling members, means being provided whereby the compression takes place uniformly and evenly through the entire surface of the sleeve. The internal diameters of the cou ling members will be varied, according to t e size of the wire or cable to which a given member is to be attached. By the use of the splitfsleeve connection herein described the ends or terminal of two wires or cables of a wire and a cable can be provided with a firm mechanical joint and good electrical connection, whether the diameters of the attached or connected wires or cables are the same or different.

in the present instance l provide acouplin in the form of a double-coned sleeve, which is formed originally of two separate members capable of being united one with the other, each member being also slitted lonvitudinally, so as to provide a sufficient number of sections between the slits or between a given slit and the edge of the half-slecve to permit of a close compression of the sleeve ipon the ends of the wires by the act of coupit has been proposed heretofore to utilize split sleeves as coupling elements; but it has been customary to slit these' sleeves only Y through aportion of their length, whereby it has been made impossible to secure a tight compression of the sleeve around thc terminals of the wires or cables. lt will be seen that the present form of split sleeve avoids this difliculty.

I have illustrated my invention in the accompanying drawings, in which Fifruie 1 is an elevation of a completed coupling joining the ends of cables. Fig. 2 is a partly-sectional longitudinaliview showing two cables coupled together at their ends by means of my improved coupling device. Fig. 3 is an inside view of a half-sleeve forming part of my invention. Fig. 4 is a perspective of the completed sleeve. Fig. 5 is a side elevation of a com ileted sleeve, and Fig. 6 is an end view thereof.

- In the first fleure of the drawings, 1 and 2 are electric cab cs covered for the most part with insulating-coverings 3 and et, respectively, but bared at the point where the couplingis to bc made and surroundedby coupling-sections 5 and (i, engaging with an intermediate coupling section. 7 by means of screw-threads, as shown at S 8. The wires 1 and 2 are adapted to enter openings in the intermediate coupling-piece 7, as shown. The wires also pass into a split sleeve 10, having tapering exterior surfaces 9 9, which rest against tapering surfaces on the inside of the coupler 7, such tapering surfaces having the same slope as the exterior of the tapering sleeve. The coupling-sections 5 and G also have at their outer ends sloping internal surfaces corresponding to the slope of the outer ends of tlie-split sleeve.

It is clear that by screwing the coupler 5, for example, tightly upon the coupler 7 pres sure will be exerted in a longitudinal direction upon one of the split sleeves 10, which will result in a -radial contraction of the said sleeve, causing it to be compressed tightly against the wire. Itis found, however. that if the sleeve be merely split at one or on opposite sides the tendency is to force the. edges of the sleeve along the split portion to bc pressed tightly against the wires or cables, this action being one with a tendency to spread the sleeve at other portions of its body. l therefore make the sleeve in two portions which interlock with each other, as shown in the later figures of the drawings. Each sleeve is made with a notch 11 and a lug 12, the lugs and notches being so arranged that when the half-sleeves are applied to each lIo other they interlock and constitute practically a single sleeve split on opposite sides.

At the same time, I also provide slits running lengthwise of the half-sleeves, which slits are so cut as to leave at all points the same depth or thickness of metal between the inner surfaces of the slit and the interior surfaces of the half-sleeves. By virtue of the described arran ement the compression of the sleeve, regar ed as awhole, by the action of the cou ling-sections when tightened tends to ma e a uniform compressionof the sleeve varound the entire circumference. I n this way a distinct improvement is made in the art of couplino* by means of devices of this character.

ft will be understood. that the screwthreads upon the intermediate coupler are cut in opposite directions, so that the tightening of either of the coupling devices 5 and 6 will tend also to tighten the other coupling device. It will further be understood that the device may be made up of a plurality of interlocking segments-say, three or four or any convenient number-with or without the flexible unions formed by the longitudinal slits.

I claim as my invention- 1. The combination' with the 'end of an electrical conductor, of a coupling-section surrounding the said end, an engaging coupling-section cooperating with the first-named coupling-section, and an intermediate conducting split sleeve having oppositely-taper- .1

ing surfaces 'between the said coupling-sections and the conductor, the said coup'lingsections being provided with internal-oppositely-sloping surfaces corresponding to the surfaces of the sleeve and the sleeve itself being formed of two interlocking halves slitted throughout their entire length, each half being composed of a plurality of similar segments having flexible connections between them.

2. The combination with the bared end of a conducting wire or cable, of a conducting split sleeve having oppositel -tapering surfaces surrounding the said en and couplingsections provided with means for pressin lengthwise upon the taperin surfaces an compressing the split sleeve, t e sleeve being formed in interlocking sections slitted through their entire length, each section being composed of a plurality of segments having ilexible connections between them.

3. As an element of a coupling for the bared ends of conducting wires or cables, a con-ducting split sleeve having oppositely-t'aering surfaces and formed in interlocking ii'alves, each half being composed of a plurality of similar segments having flexible connections between them.

4. As an element of a coupling for the ends of conducting wires or cables, a conducting split sleeve formed in interlockin sections, each section composed ofa plurahty of segments having flexible connections between them.

Signed at New York, in the county of New York and State of New York, this 7th day of February, A; D. 1905.

JOHN J DOSSERT.

Witnesses:

J. B. MAXWELL, GEORGE H. STooKBnIDGE. 

